1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_NFS_XDR_H 3 #define _LINUX_NFS_XDR_H 4 5 #include <linux/nfsacl.h> 6 #include <linux/sunrpc/gss_api.h> 7 8 /* 9 * To change the maximum rsize and wsize supported by the NFS client, adjust 10 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can 11 * support a megabyte or more. The default is left at 4096 bytes, which is 12 * reasonable for NFS over UDP. 13 */ 14 #define NFS_MAX_FILE_IO_SIZE (1048576U) 15 #define NFS_DEF_FILE_IO_SIZE (4096U) 16 #define NFS_MIN_FILE_IO_SIZE (1024U) 17 18 struct nfs4_string { 19 unsigned int len; 20 char *data; 21 }; 22 23 struct nfs_fsid { 24 uint64_t major; 25 uint64_t minor; 26 }; 27 28 /* 29 * Helper for checking equality between 2 fsids. 30 */ 31 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) 32 { 33 return a->major == b->major && a->minor == b->minor; 34 } 35 36 struct nfs4_threshold { 37 __u32 bm; 38 __u32 l_type; 39 __u64 rd_sz; 40 __u64 wr_sz; 41 __u64 rd_io_sz; 42 __u64 wr_io_sz; 43 }; 44 45 struct nfs_fattr { 46 unsigned int valid; /* which fields are valid */ 47 umode_t mode; 48 __u32 nlink; 49 kuid_t uid; 50 kgid_t gid; 51 dev_t rdev; 52 __u64 size; 53 union { 54 struct { 55 __u32 blocksize; 56 __u32 blocks; 57 } nfs2; 58 struct { 59 __u64 used; 60 } nfs3; 61 } du; 62 struct nfs_fsid fsid; 63 __u64 fileid; 64 __u64 mounted_on_fileid; 65 struct timespec atime; 66 struct timespec mtime; 67 struct timespec ctime; 68 __u64 change_attr; /* NFSv4 change attribute */ 69 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ 70 __u64 pre_size; /* pre_op_attr.size */ 71 struct timespec pre_mtime; /* pre_op_attr.mtime */ 72 struct timespec pre_ctime; /* pre_op_attr.ctime */ 73 unsigned long time_start; 74 unsigned long gencount; 75 struct nfs4_string *owner_name; 76 struct nfs4_string *group_name; 77 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */ 78 }; 79 80 #define NFS_ATTR_FATTR_TYPE (1U << 0) 81 #define NFS_ATTR_FATTR_MODE (1U << 1) 82 #define NFS_ATTR_FATTR_NLINK (1U << 2) 83 #define NFS_ATTR_FATTR_OWNER (1U << 3) 84 #define NFS_ATTR_FATTR_GROUP (1U << 4) 85 #define NFS_ATTR_FATTR_RDEV (1U << 5) 86 #define NFS_ATTR_FATTR_SIZE (1U << 6) 87 #define NFS_ATTR_FATTR_PRESIZE (1U << 7) 88 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8) 89 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9) 90 #define NFS_ATTR_FATTR_FSID (1U << 10) 91 #define NFS_ATTR_FATTR_FILEID (1U << 11) 92 #define NFS_ATTR_FATTR_ATIME (1U << 12) 93 #define NFS_ATTR_FATTR_MTIME (1U << 13) 94 #define NFS_ATTR_FATTR_CTIME (1U << 14) 95 #define NFS_ATTR_FATTR_PREMTIME (1U << 15) 96 #define NFS_ATTR_FATTR_PRECTIME (1U << 16) 97 #define NFS_ATTR_FATTR_CHANGE (1U << 17) 98 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18) 99 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19) 100 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20) 101 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21) 102 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22) 103 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23) 104 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24) 105 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25) 106 107 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \ 108 | NFS_ATTR_FATTR_MODE \ 109 | NFS_ATTR_FATTR_NLINK \ 110 | NFS_ATTR_FATTR_OWNER \ 111 | NFS_ATTR_FATTR_GROUP \ 112 | NFS_ATTR_FATTR_RDEV \ 113 | NFS_ATTR_FATTR_SIZE \ 114 | NFS_ATTR_FATTR_FSID \ 115 | NFS_ATTR_FATTR_FILEID \ 116 | NFS_ATTR_FATTR_ATIME \ 117 | NFS_ATTR_FATTR_MTIME \ 118 | NFS_ATTR_FATTR_CTIME \ 119 | NFS_ATTR_FATTR_CHANGE) 120 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \ 121 | NFS_ATTR_FATTR_BLOCKS_USED) 122 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \ 123 | NFS_ATTR_FATTR_SPACE_USED) 124 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \ 125 | NFS_ATTR_FATTR_SPACE_USED \ 126 | NFS_ATTR_FATTR_V4_SECURITY_LABEL) 127 128 /* 129 * Maximal number of supported layout drivers. 130 */ 131 #define NFS_MAX_LAYOUT_TYPES 8 132 133 /* 134 * Info on the file system 135 */ 136 struct nfs_fsinfo { 137 struct nfs_fattr *fattr; /* Post-op attributes */ 138 __u32 rtmax; /* max. read transfer size */ 139 __u32 rtpref; /* pref. read transfer size */ 140 __u32 rtmult; /* reads should be multiple of this */ 141 __u32 wtmax; /* max. write transfer size */ 142 __u32 wtpref; /* pref. write transfer size */ 143 __u32 wtmult; /* writes should be multiple of this */ 144 __u32 dtpref; /* pref. readdir transfer size */ 145 __u64 maxfilesize; 146 struct timespec time_delta; /* server time granularity */ 147 __u32 lease_time; /* in seconds */ 148 __u32 nlayouttypes; /* number of layouttypes */ 149 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */ 150 __u32 blksize; /* preferred pnfs io block size */ 151 __u32 clone_blksize; /* granularity of a CLONE operation */ 152 }; 153 154 struct nfs_fsstat { 155 struct nfs_fattr *fattr; /* Post-op attributes */ 156 __u64 tbytes; /* total size in bytes */ 157 __u64 fbytes; /* # of free bytes */ 158 __u64 abytes; /* # of bytes available to user */ 159 __u64 tfiles; /* # of files */ 160 __u64 ffiles; /* # of free files */ 161 __u64 afiles; /* # of files available to user */ 162 }; 163 164 struct nfs2_fsstat { 165 __u32 tsize; /* Server transfer size */ 166 __u32 bsize; /* Filesystem block size */ 167 __u32 blocks; /* No. of "bsize" blocks on filesystem */ 168 __u32 bfree; /* No. of free "bsize" blocks */ 169 __u32 bavail; /* No. of available "bsize" blocks */ 170 }; 171 172 struct nfs_pathconf { 173 struct nfs_fattr *fattr; /* Post-op attributes */ 174 __u32 max_link; /* max # of hard links */ 175 __u32 max_namelen; /* max name length */ 176 }; 177 178 struct nfs4_change_info { 179 u32 atomic; 180 u64 before; 181 u64 after; 182 }; 183 184 struct nfs_seqid; 185 186 /* nfs41 sessions channel attributes */ 187 struct nfs4_channel_attrs { 188 u32 max_rqst_sz; 189 u32 max_resp_sz; 190 u32 max_resp_sz_cached; 191 u32 max_ops; 192 u32 max_reqs; 193 }; 194 195 struct nfs4_slot; 196 struct nfs4_sequence_args { 197 struct nfs4_slot *sa_slot; 198 u8 sa_cache_this : 1, 199 sa_privileged : 1; 200 }; 201 202 struct nfs4_sequence_res { 203 struct nfs4_slot *sr_slot; /* slot used to send request */ 204 unsigned long sr_timestamp; 205 int sr_status; /* sequence operation status */ 206 u32 sr_status_flags; 207 u32 sr_highest_slotid; 208 u32 sr_target_highest_slotid; 209 }; 210 211 struct nfs4_get_lease_time_args { 212 struct nfs4_sequence_args la_seq_args; 213 }; 214 215 struct nfs4_get_lease_time_res { 216 struct nfs4_sequence_res lr_seq_res; 217 struct nfs_fsinfo *lr_fsinfo; 218 }; 219 220 struct xdr_stream; 221 struct nfs4_xdr_opaque_data; 222 223 struct nfs4_xdr_opaque_ops { 224 void (*encode)(struct xdr_stream *, const void *args, 225 const struct nfs4_xdr_opaque_data *); 226 void (*free)(struct nfs4_xdr_opaque_data *); 227 }; 228 229 struct nfs4_xdr_opaque_data { 230 const struct nfs4_xdr_opaque_ops *ops; 231 void *data; 232 }; 233 234 #define PNFS_LAYOUT_MAXSIZE 4096 235 236 struct nfs4_layoutdriver_data { 237 struct page **pages; 238 __u32 pglen; 239 __u32 len; 240 }; 241 242 struct pnfs_layout_range { 243 u32 iomode; 244 u64 offset; 245 u64 length; 246 }; 247 248 struct nfs4_layoutget_args { 249 struct nfs4_sequence_args seq_args; 250 __u32 type; 251 struct pnfs_layout_range range; 252 __u64 minlength; 253 __u32 maxcount; 254 struct inode *inode; 255 struct nfs_open_context *ctx; 256 nfs4_stateid stateid; 257 struct nfs4_layoutdriver_data layout; 258 }; 259 260 struct nfs4_layoutget_res { 261 struct nfs4_sequence_res seq_res; 262 int status; 263 __u32 return_on_close; 264 struct pnfs_layout_range range; 265 __u32 type; 266 nfs4_stateid stateid; 267 struct nfs4_layoutdriver_data *layoutp; 268 }; 269 270 struct nfs4_layoutget { 271 struct nfs4_layoutget_args args; 272 struct nfs4_layoutget_res res; 273 const struct cred *cred; 274 gfp_t gfp_flags; 275 }; 276 277 struct nfs4_getdeviceinfo_args { 278 struct nfs4_sequence_args seq_args; 279 struct pnfs_device *pdev; 280 __u32 notify_types; 281 }; 282 283 struct nfs4_getdeviceinfo_res { 284 struct nfs4_sequence_res seq_res; 285 struct pnfs_device *pdev; 286 __u32 notification; 287 }; 288 289 struct nfs4_layoutcommit_args { 290 struct nfs4_sequence_args seq_args; 291 nfs4_stateid stateid; 292 __u64 lastbytewritten; 293 struct inode *inode; 294 const u32 *bitmask; 295 size_t layoutupdate_len; 296 struct page *layoutupdate_page; 297 struct page **layoutupdate_pages; 298 __be32 *start_p; 299 }; 300 301 struct nfs4_layoutcommit_res { 302 struct nfs4_sequence_res seq_res; 303 struct nfs_fattr *fattr; 304 const struct nfs_server *server; 305 int status; 306 }; 307 308 struct nfs4_layoutcommit_data { 309 struct rpc_task task; 310 struct nfs_fattr fattr; 311 struct list_head lseg_list; 312 const struct cred *cred; 313 struct inode *inode; 314 struct nfs4_layoutcommit_args args; 315 struct nfs4_layoutcommit_res res; 316 }; 317 318 struct nfs4_layoutreturn_args { 319 struct nfs4_sequence_args seq_args; 320 struct pnfs_layout_hdr *layout; 321 struct inode *inode; 322 struct pnfs_layout_range range; 323 nfs4_stateid stateid; 324 __u32 layout_type; 325 struct nfs4_xdr_opaque_data *ld_private; 326 }; 327 328 struct nfs4_layoutreturn_res { 329 struct nfs4_sequence_res seq_res; 330 u32 lrs_present; 331 nfs4_stateid stateid; 332 }; 333 334 struct nfs4_layoutreturn { 335 struct nfs4_layoutreturn_args args; 336 struct nfs4_layoutreturn_res res; 337 const struct cred *cred; 338 struct nfs_client *clp; 339 struct inode *inode; 340 int rpc_status; 341 struct nfs4_xdr_opaque_data ld_private; 342 }; 343 344 #define PNFS_LAYOUTSTATS_MAXSIZE 256 345 346 struct nfs42_layoutstat_args; 347 struct nfs42_layoutstat_devinfo; 348 typedef void (*layoutstats_encode_t)(struct xdr_stream *, 349 struct nfs42_layoutstat_args *, 350 struct nfs42_layoutstat_devinfo *); 351 352 /* Per file per deviceid layoutstats */ 353 struct nfs42_layoutstat_devinfo { 354 struct nfs4_deviceid dev_id; 355 __u64 offset; 356 __u64 length; 357 __u64 read_count; 358 __u64 read_bytes; 359 __u64 write_count; 360 __u64 write_bytes; 361 __u32 layout_type; 362 struct nfs4_xdr_opaque_data ld_private; 363 }; 364 365 struct nfs42_layoutstat_args { 366 struct nfs4_sequence_args seq_args; 367 struct nfs_fh *fh; 368 struct inode *inode; 369 nfs4_stateid stateid; 370 int num_dev; 371 struct nfs42_layoutstat_devinfo *devinfo; 372 }; 373 374 struct nfs42_layoutstat_res { 375 struct nfs4_sequence_res seq_res; 376 int num_dev; 377 int rpc_status; 378 }; 379 380 struct nfs42_layoutstat_data { 381 struct inode *inode; 382 struct nfs42_layoutstat_args args; 383 struct nfs42_layoutstat_res res; 384 }; 385 386 struct nfs42_clone_args { 387 struct nfs4_sequence_args seq_args; 388 struct nfs_fh *src_fh; 389 struct nfs_fh *dst_fh; 390 nfs4_stateid src_stateid; 391 nfs4_stateid dst_stateid; 392 __u64 src_offset; 393 __u64 dst_offset; 394 __u64 count; 395 const u32 *dst_bitmask; 396 }; 397 398 struct nfs42_clone_res { 399 struct nfs4_sequence_res seq_res; 400 unsigned int rpc_status; 401 struct nfs_fattr *dst_fattr; 402 const struct nfs_server *server; 403 }; 404 405 struct stateowner_id { 406 __u64 create_time; 407 __u32 uniquifier; 408 }; 409 410 /* 411 * Arguments to the open call. 412 */ 413 struct nfs_openargs { 414 struct nfs4_sequence_args seq_args; 415 const struct nfs_fh * fh; 416 struct nfs_seqid * seqid; 417 int open_flags; 418 fmode_t fmode; 419 u32 share_access; 420 u32 access; 421 __u64 clientid; 422 struct stateowner_id id; 423 union { 424 struct { 425 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */ 426 nfs4_verifier verifier; /* EXCLUSIVE */ 427 }; 428 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */ 429 fmode_t delegation_type; /* CLAIM_PREVIOUS */ 430 } u; 431 const struct qstr * name; 432 const struct nfs_server *server; /* Needed for ID mapping */ 433 const u32 * bitmask; 434 const u32 * open_bitmap; 435 enum open_claim_type4 claim; 436 enum createmode4 createmode; 437 const struct nfs4_label *label; 438 umode_t umask; 439 struct nfs4_layoutget_args *lg_args; 440 }; 441 442 struct nfs_openres { 443 struct nfs4_sequence_res seq_res; 444 nfs4_stateid stateid; 445 struct nfs_fh fh; 446 struct nfs4_change_info cinfo; 447 __u32 rflags; 448 struct nfs_fattr * f_attr; 449 struct nfs4_label *f_label; 450 struct nfs_seqid * seqid; 451 const struct nfs_server *server; 452 fmode_t delegation_type; 453 nfs4_stateid delegation; 454 unsigned long pagemod_limit; 455 __u32 do_recall; 456 __u32 attrset[NFS4_BITMAP_SIZE]; 457 struct nfs4_string *owner; 458 struct nfs4_string *group_owner; 459 __u32 access_request; 460 __u32 access_supported; 461 __u32 access_result; 462 struct nfs4_layoutget_res *lg_res; 463 }; 464 465 /* 466 * Arguments to the open_confirm call. 467 */ 468 struct nfs_open_confirmargs { 469 struct nfs4_sequence_args seq_args; 470 const struct nfs_fh * fh; 471 nfs4_stateid * stateid; 472 struct nfs_seqid * seqid; 473 }; 474 475 struct nfs_open_confirmres { 476 struct nfs4_sequence_res seq_res; 477 nfs4_stateid stateid; 478 struct nfs_seqid * seqid; 479 }; 480 481 /* 482 * Arguments to the close call. 483 */ 484 struct nfs_closeargs { 485 struct nfs4_sequence_args seq_args; 486 struct nfs_fh * fh; 487 nfs4_stateid stateid; 488 struct nfs_seqid * seqid; 489 fmode_t fmode; 490 u32 share_access; 491 const u32 * bitmask; 492 struct nfs4_layoutreturn_args *lr_args; 493 }; 494 495 struct nfs_closeres { 496 struct nfs4_sequence_res seq_res; 497 nfs4_stateid stateid; 498 struct nfs_fattr * fattr; 499 struct nfs_seqid * seqid; 500 const struct nfs_server *server; 501 struct nfs4_layoutreturn_res *lr_res; 502 int lr_ret; 503 }; 504 /* 505 * * Arguments to the lock,lockt, and locku call. 506 * */ 507 struct nfs_lowner { 508 __u64 clientid; 509 __u64 id; 510 dev_t s_dev; 511 }; 512 513 struct nfs_lock_args { 514 struct nfs4_sequence_args seq_args; 515 struct nfs_fh * fh; 516 struct file_lock * fl; 517 struct nfs_seqid * lock_seqid; 518 nfs4_stateid lock_stateid; 519 struct nfs_seqid * open_seqid; 520 nfs4_stateid open_stateid; 521 struct nfs_lowner lock_owner; 522 unsigned char block : 1; 523 unsigned char reclaim : 1; 524 unsigned char new_lock : 1; 525 unsigned char new_lock_owner : 1; 526 }; 527 528 struct nfs_lock_res { 529 struct nfs4_sequence_res seq_res; 530 nfs4_stateid stateid; 531 struct nfs_seqid * lock_seqid; 532 struct nfs_seqid * open_seqid; 533 }; 534 535 struct nfs_locku_args { 536 struct nfs4_sequence_args seq_args; 537 struct nfs_fh * fh; 538 struct file_lock * fl; 539 struct nfs_seqid * seqid; 540 nfs4_stateid stateid; 541 }; 542 543 struct nfs_locku_res { 544 struct nfs4_sequence_res seq_res; 545 nfs4_stateid stateid; 546 struct nfs_seqid * seqid; 547 }; 548 549 struct nfs_lockt_args { 550 struct nfs4_sequence_args seq_args; 551 struct nfs_fh * fh; 552 struct file_lock * fl; 553 struct nfs_lowner lock_owner; 554 }; 555 556 struct nfs_lockt_res { 557 struct nfs4_sequence_res seq_res; 558 struct file_lock * denied; /* LOCK, LOCKT failed */ 559 }; 560 561 struct nfs_release_lockowner_args { 562 struct nfs4_sequence_args seq_args; 563 struct nfs_lowner lock_owner; 564 }; 565 566 struct nfs_release_lockowner_res { 567 struct nfs4_sequence_res seq_res; 568 }; 569 570 struct nfs4_delegreturnargs { 571 struct nfs4_sequence_args seq_args; 572 const struct nfs_fh *fhandle; 573 const nfs4_stateid *stateid; 574 const u32 * bitmask; 575 struct nfs4_layoutreturn_args *lr_args; 576 }; 577 578 struct nfs4_delegreturnres { 579 struct nfs4_sequence_res seq_res; 580 struct nfs_fattr * fattr; 581 struct nfs_server *server; 582 struct nfs4_layoutreturn_res *lr_res; 583 int lr_ret; 584 }; 585 586 /* 587 * Arguments to the write call. 588 */ 589 struct nfs_write_verifier { 590 char data[8]; 591 }; 592 593 struct nfs_writeverf { 594 struct nfs_write_verifier verifier; 595 enum nfs3_stable_how committed; 596 }; 597 598 /* 599 * Arguments shared by the read and write call. 600 */ 601 struct nfs_pgio_args { 602 struct nfs4_sequence_args seq_args; 603 struct nfs_fh * fh; 604 struct nfs_open_context *context; 605 struct nfs_lock_context *lock_context; 606 nfs4_stateid stateid; 607 __u64 offset; 608 __u32 count; 609 unsigned int pgbase; 610 struct page ** pages; 611 union { 612 unsigned int replen; /* used by read */ 613 struct { 614 const u32 * bitmask; /* used by write */ 615 enum nfs3_stable_how stable; /* used by write */ 616 }; 617 }; 618 }; 619 620 struct nfs_pgio_res { 621 struct nfs4_sequence_res seq_res; 622 struct nfs_fattr * fattr; 623 __u32 count; 624 __u32 op_status; 625 union { 626 struct { 627 unsigned int replen; /* used by read */ 628 int eof; /* used by read */ 629 }; 630 struct { 631 struct nfs_writeverf * verf; /* used by write */ 632 const struct nfs_server *server; /* used by write */ 633 }; 634 }; 635 }; 636 637 /* 638 * Arguments to the commit call. 639 */ 640 struct nfs_commitargs { 641 struct nfs4_sequence_args seq_args; 642 struct nfs_fh *fh; 643 __u64 offset; 644 __u32 count; 645 const u32 *bitmask; 646 }; 647 648 struct nfs_commitres { 649 struct nfs4_sequence_res seq_res; 650 __u32 op_status; 651 struct nfs_fattr *fattr; 652 struct nfs_writeverf *verf; 653 const struct nfs_server *server; 654 }; 655 656 /* 657 * Common arguments to the unlink call 658 */ 659 struct nfs_removeargs { 660 struct nfs4_sequence_args seq_args; 661 const struct nfs_fh *fh; 662 struct qstr name; 663 }; 664 665 struct nfs_removeres { 666 struct nfs4_sequence_res seq_res; 667 struct nfs_server *server; 668 struct nfs_fattr *dir_attr; 669 struct nfs4_change_info cinfo; 670 }; 671 672 /* 673 * Common arguments to the rename call 674 */ 675 struct nfs_renameargs { 676 struct nfs4_sequence_args seq_args; 677 const struct nfs_fh *old_dir; 678 const struct nfs_fh *new_dir; 679 const struct qstr *old_name; 680 const struct qstr *new_name; 681 }; 682 683 struct nfs_renameres { 684 struct nfs4_sequence_res seq_res; 685 struct nfs_server *server; 686 struct nfs4_change_info old_cinfo; 687 struct nfs_fattr *old_fattr; 688 struct nfs4_change_info new_cinfo; 689 struct nfs_fattr *new_fattr; 690 }; 691 692 /* parsed sec= options */ 693 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */ 694 struct nfs_auth_info { 695 unsigned int flavor_len; 696 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS]; 697 }; 698 699 /* 700 * Argument struct for decode_entry function 701 */ 702 struct nfs_entry { 703 __u64 ino; 704 __u64 cookie, 705 prev_cookie; 706 const char * name; 707 unsigned int len; 708 int eof; 709 struct nfs_fh * fh; 710 struct nfs_fattr * fattr; 711 struct nfs4_label *label; 712 unsigned char d_type; 713 struct nfs_server * server; 714 }; 715 716 /* 717 * The following types are for NFSv2 only. 718 */ 719 struct nfs_sattrargs { 720 struct nfs_fh * fh; 721 struct iattr * sattr; 722 }; 723 724 struct nfs_diropargs { 725 struct nfs_fh * fh; 726 const char * name; 727 unsigned int len; 728 }; 729 730 struct nfs_createargs { 731 struct nfs_fh * fh; 732 const char * name; 733 unsigned int len; 734 struct iattr * sattr; 735 }; 736 737 struct nfs_setattrargs { 738 struct nfs4_sequence_args seq_args; 739 struct nfs_fh * fh; 740 nfs4_stateid stateid; 741 struct iattr * iap; 742 const struct nfs_server * server; /* Needed for name mapping */ 743 const u32 * bitmask; 744 const struct nfs4_label *label; 745 }; 746 747 struct nfs_setaclargs { 748 struct nfs4_sequence_args seq_args; 749 struct nfs_fh * fh; 750 size_t acl_len; 751 struct page ** acl_pages; 752 }; 753 754 struct nfs_setaclres { 755 struct nfs4_sequence_res seq_res; 756 }; 757 758 struct nfs_getaclargs { 759 struct nfs4_sequence_args seq_args; 760 struct nfs_fh * fh; 761 size_t acl_len; 762 struct page ** acl_pages; 763 }; 764 765 /* getxattr ACL interface flags */ 766 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ 767 struct nfs_getaclres { 768 struct nfs4_sequence_res seq_res; 769 size_t acl_len; 770 size_t acl_data_offset; 771 int acl_flags; 772 struct page * acl_scratch; 773 }; 774 775 struct nfs_setattrres { 776 struct nfs4_sequence_res seq_res; 777 struct nfs_fattr * fattr; 778 struct nfs4_label *label; 779 const struct nfs_server * server; 780 }; 781 782 struct nfs_linkargs { 783 struct nfs_fh * fromfh; 784 struct nfs_fh * tofh; 785 const char * toname; 786 unsigned int tolen; 787 }; 788 789 struct nfs_symlinkargs { 790 struct nfs_fh * fromfh; 791 const char * fromname; 792 unsigned int fromlen; 793 struct page ** pages; 794 unsigned int pathlen; 795 struct iattr * sattr; 796 }; 797 798 struct nfs_readdirargs { 799 struct nfs_fh * fh; 800 __u32 cookie; 801 unsigned int count; 802 struct page ** pages; 803 }; 804 805 struct nfs3_getaclargs { 806 struct nfs_fh * fh; 807 int mask; 808 struct page ** pages; 809 }; 810 811 struct nfs3_setaclargs { 812 struct inode * inode; 813 int mask; 814 struct posix_acl * acl_access; 815 struct posix_acl * acl_default; 816 size_t len; 817 unsigned int npages; 818 struct page ** pages; 819 }; 820 821 struct nfs_diropok { 822 struct nfs_fh * fh; 823 struct nfs_fattr * fattr; 824 }; 825 826 struct nfs_readlinkargs { 827 struct nfs_fh * fh; 828 unsigned int pgbase; 829 unsigned int pglen; 830 struct page ** pages; 831 }; 832 833 struct nfs3_sattrargs { 834 struct nfs_fh * fh; 835 struct iattr * sattr; 836 unsigned int guard; 837 struct timespec guardtime; 838 }; 839 840 struct nfs3_diropargs { 841 struct nfs_fh * fh; 842 const char * name; 843 unsigned int len; 844 }; 845 846 struct nfs3_accessargs { 847 struct nfs_fh * fh; 848 __u32 access; 849 }; 850 851 struct nfs3_createargs { 852 struct nfs_fh * fh; 853 const char * name; 854 unsigned int len; 855 struct iattr * sattr; 856 enum nfs3_createmode createmode; 857 __be32 verifier[2]; 858 }; 859 860 struct nfs3_mkdirargs { 861 struct nfs_fh * fh; 862 const char * name; 863 unsigned int len; 864 struct iattr * sattr; 865 }; 866 867 struct nfs3_symlinkargs { 868 struct nfs_fh * fromfh; 869 const char * fromname; 870 unsigned int fromlen; 871 struct page ** pages; 872 unsigned int pathlen; 873 struct iattr * sattr; 874 }; 875 876 struct nfs3_mknodargs { 877 struct nfs_fh * fh; 878 const char * name; 879 unsigned int len; 880 enum nfs3_ftype type; 881 struct iattr * sattr; 882 dev_t rdev; 883 }; 884 885 struct nfs3_linkargs { 886 struct nfs_fh * fromfh; 887 struct nfs_fh * tofh; 888 const char * toname; 889 unsigned int tolen; 890 }; 891 892 struct nfs3_readdirargs { 893 struct nfs_fh * fh; 894 __u64 cookie; 895 __be32 verf[2]; 896 bool plus; 897 unsigned int count; 898 struct page ** pages; 899 }; 900 901 struct nfs3_diropres { 902 struct nfs_fattr * dir_attr; 903 struct nfs_fh * fh; 904 struct nfs_fattr * fattr; 905 }; 906 907 struct nfs3_accessres { 908 struct nfs_fattr * fattr; 909 __u32 access; 910 }; 911 912 struct nfs3_readlinkargs { 913 struct nfs_fh * fh; 914 unsigned int pgbase; 915 unsigned int pglen; 916 struct page ** pages; 917 }; 918 919 struct nfs3_linkres { 920 struct nfs_fattr * dir_attr; 921 struct nfs_fattr * fattr; 922 }; 923 924 struct nfs3_readdirres { 925 struct nfs_fattr * dir_attr; 926 __be32 * verf; 927 bool plus; 928 }; 929 930 struct nfs3_getaclres { 931 struct nfs_fattr * fattr; 932 int mask; 933 unsigned int acl_access_count; 934 unsigned int acl_default_count; 935 struct posix_acl * acl_access; 936 struct posix_acl * acl_default; 937 }; 938 939 #if IS_ENABLED(CONFIG_NFS_V4) 940 941 typedef u64 clientid4; 942 943 struct nfs4_accessargs { 944 struct nfs4_sequence_args seq_args; 945 const struct nfs_fh * fh; 946 const u32 * bitmask; 947 u32 access; 948 }; 949 950 struct nfs4_accessres { 951 struct nfs4_sequence_res seq_res; 952 const struct nfs_server * server; 953 struct nfs_fattr * fattr; 954 u32 supported; 955 u32 access; 956 }; 957 958 struct nfs4_create_arg { 959 struct nfs4_sequence_args seq_args; 960 u32 ftype; 961 union { 962 struct { 963 struct page ** pages; 964 unsigned int len; 965 } symlink; /* NF4LNK */ 966 struct { 967 u32 specdata1; 968 u32 specdata2; 969 } device; /* NF4BLK, NF4CHR */ 970 } u; 971 const struct qstr * name; 972 const struct nfs_server * server; 973 const struct iattr * attrs; 974 const struct nfs_fh * dir_fh; 975 const u32 * bitmask; 976 const struct nfs4_label *label; 977 umode_t umask; 978 }; 979 980 struct nfs4_create_res { 981 struct nfs4_sequence_res seq_res; 982 const struct nfs_server * server; 983 struct nfs_fh * fh; 984 struct nfs_fattr * fattr; 985 struct nfs4_label *label; 986 struct nfs4_change_info dir_cinfo; 987 }; 988 989 struct nfs4_fsinfo_arg { 990 struct nfs4_sequence_args seq_args; 991 const struct nfs_fh * fh; 992 const u32 * bitmask; 993 }; 994 995 struct nfs4_fsinfo_res { 996 struct nfs4_sequence_res seq_res; 997 struct nfs_fsinfo *fsinfo; 998 }; 999 1000 struct nfs4_getattr_arg { 1001 struct nfs4_sequence_args seq_args; 1002 const struct nfs_fh * fh; 1003 const u32 * bitmask; 1004 }; 1005 1006 struct nfs4_getattr_res { 1007 struct nfs4_sequence_res seq_res; 1008 const struct nfs_server * server; 1009 struct nfs_fattr * fattr; 1010 struct nfs4_label *label; 1011 }; 1012 1013 struct nfs4_link_arg { 1014 struct nfs4_sequence_args seq_args; 1015 const struct nfs_fh * fh; 1016 const struct nfs_fh * dir_fh; 1017 const struct qstr * name; 1018 const u32 * bitmask; 1019 }; 1020 1021 struct nfs4_link_res { 1022 struct nfs4_sequence_res seq_res; 1023 const struct nfs_server * server; 1024 struct nfs_fattr * fattr; 1025 struct nfs4_label *label; 1026 struct nfs4_change_info cinfo; 1027 struct nfs_fattr * dir_attr; 1028 }; 1029 1030 struct nfs4_lookup_arg { 1031 struct nfs4_sequence_args seq_args; 1032 const struct nfs_fh * dir_fh; 1033 const struct qstr * name; 1034 const u32 * bitmask; 1035 }; 1036 1037 struct nfs4_lookup_res { 1038 struct nfs4_sequence_res seq_res; 1039 const struct nfs_server * server; 1040 struct nfs_fattr * fattr; 1041 struct nfs_fh * fh; 1042 struct nfs4_label *label; 1043 }; 1044 1045 struct nfs4_lookupp_arg { 1046 struct nfs4_sequence_args seq_args; 1047 const struct nfs_fh *fh; 1048 const u32 *bitmask; 1049 }; 1050 1051 struct nfs4_lookupp_res { 1052 struct nfs4_sequence_res seq_res; 1053 const struct nfs_server *server; 1054 struct nfs_fattr *fattr; 1055 struct nfs_fh *fh; 1056 struct nfs4_label *label; 1057 }; 1058 1059 struct nfs4_lookup_root_arg { 1060 struct nfs4_sequence_args seq_args; 1061 const u32 * bitmask; 1062 }; 1063 1064 struct nfs4_pathconf_arg { 1065 struct nfs4_sequence_args seq_args; 1066 const struct nfs_fh * fh; 1067 const u32 * bitmask; 1068 }; 1069 1070 struct nfs4_pathconf_res { 1071 struct nfs4_sequence_res seq_res; 1072 struct nfs_pathconf *pathconf; 1073 }; 1074 1075 struct nfs4_readdir_arg { 1076 struct nfs4_sequence_args seq_args; 1077 const struct nfs_fh * fh; 1078 u64 cookie; 1079 nfs4_verifier verifier; 1080 u32 count; 1081 struct page ** pages; /* zero-copy data */ 1082 unsigned int pgbase; /* zero-copy data */ 1083 const u32 * bitmask; 1084 bool plus; 1085 }; 1086 1087 struct nfs4_readdir_res { 1088 struct nfs4_sequence_res seq_res; 1089 nfs4_verifier verifier; 1090 unsigned int pgbase; 1091 }; 1092 1093 struct nfs4_readlink { 1094 struct nfs4_sequence_args seq_args; 1095 const struct nfs_fh * fh; 1096 unsigned int pgbase; 1097 unsigned int pglen; /* zero-copy data */ 1098 struct page ** pages; /* zero-copy data */ 1099 }; 1100 1101 struct nfs4_readlink_res { 1102 struct nfs4_sequence_res seq_res; 1103 }; 1104 1105 struct nfs4_setclientid { 1106 const nfs4_verifier * sc_verifier; 1107 u32 sc_prog; 1108 unsigned int sc_netid_len; 1109 char sc_netid[RPCBIND_MAXNETIDLEN + 1]; 1110 unsigned int sc_uaddr_len; 1111 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1]; 1112 struct nfs_client *sc_clnt; 1113 struct rpc_cred *sc_cred; 1114 }; 1115 1116 struct nfs4_setclientid_res { 1117 u64 clientid; 1118 nfs4_verifier confirm; 1119 }; 1120 1121 struct nfs4_statfs_arg { 1122 struct nfs4_sequence_args seq_args; 1123 const struct nfs_fh * fh; 1124 const u32 * bitmask; 1125 }; 1126 1127 struct nfs4_statfs_res { 1128 struct nfs4_sequence_res seq_res; 1129 struct nfs_fsstat *fsstat; 1130 }; 1131 1132 struct nfs4_server_caps_arg { 1133 struct nfs4_sequence_args seq_args; 1134 struct nfs_fh *fhandle; 1135 const u32 * bitmask; 1136 }; 1137 1138 struct nfs4_server_caps_res { 1139 struct nfs4_sequence_res seq_res; 1140 u32 attr_bitmask[3]; 1141 u32 exclcreat_bitmask[3]; 1142 u32 acl_bitmask; 1143 u32 has_links; 1144 u32 has_symlinks; 1145 u32 fh_expire_type; 1146 }; 1147 1148 #define NFS4_PATHNAME_MAXCOMPONENTS 512 1149 struct nfs4_pathname { 1150 unsigned int ncomponents; 1151 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; 1152 }; 1153 1154 #define NFS4_FS_LOCATION_MAXSERVERS 10 1155 struct nfs4_fs_location { 1156 unsigned int nservers; 1157 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; 1158 struct nfs4_pathname rootpath; 1159 }; 1160 1161 #define NFS4_FS_LOCATIONS_MAXENTRIES 10 1162 struct nfs4_fs_locations { 1163 struct nfs_fattr fattr; 1164 const struct nfs_server *server; 1165 struct nfs4_pathname fs_path; 1166 int nlocations; 1167 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; 1168 }; 1169 1170 struct nfs4_fs_locations_arg { 1171 struct nfs4_sequence_args seq_args; 1172 const struct nfs_fh *dir_fh; 1173 const struct nfs_fh *fh; 1174 const struct qstr *name; 1175 struct page *page; 1176 const u32 *bitmask; 1177 clientid4 clientid; 1178 unsigned char migration:1, renew:1; 1179 }; 1180 1181 struct nfs4_fs_locations_res { 1182 struct nfs4_sequence_res seq_res; 1183 struct nfs4_fs_locations *fs_locations; 1184 unsigned char migration:1, renew:1; 1185 }; 1186 1187 struct nfs4_secinfo4 { 1188 u32 flavor; 1189 struct rpcsec_gss_info flavor_info; 1190 }; 1191 1192 struct nfs4_secinfo_flavors { 1193 unsigned int num_flavors; 1194 struct nfs4_secinfo4 flavors[0]; 1195 }; 1196 1197 struct nfs4_secinfo_arg { 1198 struct nfs4_sequence_args seq_args; 1199 const struct nfs_fh *dir_fh; 1200 const struct qstr *name; 1201 }; 1202 1203 struct nfs4_secinfo_res { 1204 struct nfs4_sequence_res seq_res; 1205 struct nfs4_secinfo_flavors *flavors; 1206 }; 1207 1208 struct nfs4_fsid_present_arg { 1209 struct nfs4_sequence_args seq_args; 1210 const struct nfs_fh *fh; 1211 clientid4 clientid; 1212 unsigned char renew:1; 1213 }; 1214 1215 struct nfs4_fsid_present_res { 1216 struct nfs4_sequence_res seq_res; 1217 struct nfs_fh *fh; 1218 unsigned char renew:1; 1219 }; 1220 1221 #endif /* CONFIG_NFS_V4 */ 1222 1223 struct nfstime4 { 1224 u64 seconds; 1225 u32 nseconds; 1226 }; 1227 1228 #ifdef CONFIG_NFS_V4_1 1229 1230 struct pnfs_commit_bucket { 1231 struct list_head written; 1232 struct list_head committing; 1233 struct pnfs_layout_segment *wlseg; 1234 struct pnfs_layout_segment *clseg; 1235 struct nfs_writeverf direct_verf; 1236 }; 1237 1238 struct pnfs_ds_commit_info { 1239 int nwritten; 1240 int ncommitting; 1241 int nbuckets; 1242 struct pnfs_commit_bucket *buckets; 1243 }; 1244 1245 struct nfs41_state_protection { 1246 u32 how; 1247 struct nfs4_op_map enforce; 1248 struct nfs4_op_map allow; 1249 }; 1250 1251 struct nfs41_exchange_id_args { 1252 struct nfs_client *client; 1253 nfs4_verifier verifier; 1254 u32 flags; 1255 struct nfs41_state_protection state_protect; 1256 }; 1257 1258 struct nfs41_server_owner { 1259 uint64_t minor_id; 1260 uint32_t major_id_sz; 1261 char major_id[NFS4_OPAQUE_LIMIT]; 1262 }; 1263 1264 struct nfs41_server_scope { 1265 uint32_t server_scope_sz; 1266 char server_scope[NFS4_OPAQUE_LIMIT]; 1267 }; 1268 1269 struct nfs41_impl_id { 1270 char domain[NFS4_OPAQUE_LIMIT + 1]; 1271 char name[NFS4_OPAQUE_LIMIT + 1]; 1272 struct nfstime4 date; 1273 }; 1274 1275 struct nfs41_bind_conn_to_session_args { 1276 struct nfs_client *client; 1277 struct nfs4_sessionid sessionid; 1278 u32 dir; 1279 bool use_conn_in_rdma_mode; 1280 }; 1281 1282 struct nfs41_bind_conn_to_session_res { 1283 struct nfs4_sessionid sessionid; 1284 u32 dir; 1285 bool use_conn_in_rdma_mode; 1286 }; 1287 1288 struct nfs41_exchange_id_res { 1289 u64 clientid; 1290 u32 seqid; 1291 u32 flags; 1292 struct nfs41_server_owner *server_owner; 1293 struct nfs41_server_scope *server_scope; 1294 struct nfs41_impl_id *impl_id; 1295 struct nfs41_state_protection state_protect; 1296 }; 1297 1298 struct nfs41_create_session_args { 1299 struct nfs_client *client; 1300 u64 clientid; 1301 uint32_t seqid; 1302 uint32_t flags; 1303 uint32_t cb_program; 1304 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1305 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1306 }; 1307 1308 struct nfs41_create_session_res { 1309 struct nfs4_sessionid sessionid; 1310 uint32_t seqid; 1311 uint32_t flags; 1312 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ 1313 struct nfs4_channel_attrs bc_attrs; /* Back Channel */ 1314 }; 1315 1316 struct nfs41_reclaim_complete_args { 1317 struct nfs4_sequence_args seq_args; 1318 /* In the future extend to include curr_fh for use with migration */ 1319 unsigned char one_fs:1; 1320 }; 1321 1322 struct nfs41_reclaim_complete_res { 1323 struct nfs4_sequence_res seq_res; 1324 }; 1325 1326 #define SECINFO_STYLE_CURRENT_FH 0 1327 #define SECINFO_STYLE_PARENT 1 1328 struct nfs41_secinfo_no_name_args { 1329 struct nfs4_sequence_args seq_args; 1330 int style; 1331 }; 1332 1333 struct nfs41_test_stateid_args { 1334 struct nfs4_sequence_args seq_args; 1335 nfs4_stateid *stateid; 1336 }; 1337 1338 struct nfs41_test_stateid_res { 1339 struct nfs4_sequence_res seq_res; 1340 unsigned int status; 1341 }; 1342 1343 struct nfs41_free_stateid_args { 1344 struct nfs4_sequence_args seq_args; 1345 nfs4_stateid stateid; 1346 }; 1347 1348 struct nfs41_free_stateid_res { 1349 struct nfs4_sequence_res seq_res; 1350 unsigned int status; 1351 }; 1352 1353 static inline void 1354 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo) 1355 { 1356 kfree(cinfo->buckets); 1357 } 1358 1359 #else 1360 1361 struct pnfs_ds_commit_info { 1362 }; 1363 1364 static inline void 1365 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo) 1366 { 1367 } 1368 1369 #endif /* CONFIG_NFS_V4_1 */ 1370 1371 #ifdef CONFIG_NFS_V4_2 1372 struct nfs42_falloc_args { 1373 struct nfs4_sequence_args seq_args; 1374 1375 struct nfs_fh *falloc_fh; 1376 nfs4_stateid falloc_stateid; 1377 u64 falloc_offset; 1378 u64 falloc_length; 1379 const u32 *falloc_bitmask; 1380 }; 1381 1382 struct nfs42_falloc_res { 1383 struct nfs4_sequence_res seq_res; 1384 unsigned int status; 1385 1386 struct nfs_fattr *falloc_fattr; 1387 const struct nfs_server *falloc_server; 1388 }; 1389 1390 struct nfs42_copy_args { 1391 struct nfs4_sequence_args seq_args; 1392 1393 struct nfs_fh *src_fh; 1394 nfs4_stateid src_stateid; 1395 u64 src_pos; 1396 1397 struct nfs_fh *dst_fh; 1398 nfs4_stateid dst_stateid; 1399 u64 dst_pos; 1400 1401 u64 count; 1402 bool sync; 1403 }; 1404 1405 struct nfs42_write_res { 1406 nfs4_stateid stateid; 1407 u64 count; 1408 struct nfs_writeverf verifier; 1409 }; 1410 1411 struct nfs42_copy_res { 1412 struct nfs4_sequence_res seq_res; 1413 struct nfs42_write_res write_res; 1414 bool consecutive; 1415 bool synchronous; 1416 struct nfs_commitres commit_res; 1417 }; 1418 1419 struct nfs42_offload_status_args { 1420 struct nfs4_sequence_args osa_seq_args; 1421 struct nfs_fh *osa_src_fh; 1422 nfs4_stateid osa_stateid; 1423 }; 1424 1425 struct nfs42_offload_status_res { 1426 struct nfs4_sequence_res osr_seq_res; 1427 uint64_t osr_count; 1428 int osr_status; 1429 }; 1430 1431 struct nfs42_seek_args { 1432 struct nfs4_sequence_args seq_args; 1433 1434 struct nfs_fh *sa_fh; 1435 nfs4_stateid sa_stateid; 1436 u64 sa_offset; 1437 u32 sa_what; 1438 }; 1439 1440 struct nfs42_seek_res { 1441 struct nfs4_sequence_res seq_res; 1442 unsigned int status; 1443 1444 u32 sr_eof; 1445 u64 sr_offset; 1446 }; 1447 #endif 1448 1449 struct nfs_page; 1450 1451 #define NFS_PAGEVEC_SIZE (8U) 1452 1453 struct nfs_page_array { 1454 struct page **pagevec; 1455 unsigned int npages; /* Max length of pagevec */ 1456 struct page *page_array[NFS_PAGEVEC_SIZE]; 1457 }; 1458 1459 /* used as flag bits in nfs_pgio_header */ 1460 enum { 1461 NFS_IOHDR_ERROR = 0, 1462 NFS_IOHDR_EOF, 1463 NFS_IOHDR_REDO, 1464 NFS_IOHDR_STAT, 1465 NFS_IOHDR_RESEND_PNFS, 1466 NFS_IOHDR_RESEND_MDS, 1467 }; 1468 1469 struct nfs_io_completion; 1470 struct nfs_pgio_header { 1471 struct inode *inode; 1472 const struct cred *cred; 1473 struct list_head pages; 1474 struct nfs_page *req; 1475 struct nfs_writeverf verf; /* Used for writes */ 1476 fmode_t rw_mode; 1477 struct pnfs_layout_segment *lseg; 1478 loff_t io_start; 1479 const struct rpc_call_ops *mds_ops; 1480 void (*release) (struct nfs_pgio_header *hdr); 1481 const struct nfs_pgio_completion_ops *completion_ops; 1482 const struct nfs_rw_ops *rw_ops; 1483 struct nfs_io_completion *io_completion; 1484 struct nfs_direct_req *dreq; 1485 1486 int pnfs_error; 1487 int error; /* merge with pnfs_error */ 1488 unsigned int good_bytes; /* boundary of good data */ 1489 unsigned long flags; 1490 1491 /* 1492 * rpc data 1493 */ 1494 struct rpc_task task; 1495 struct nfs_fattr fattr; 1496 struct nfs_pgio_args args; /* argument struct */ 1497 struct nfs_pgio_res res; /* result struct */ 1498 unsigned long timestamp; /* For lease renewal */ 1499 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *); 1500 __u64 mds_offset; /* Filelayout dense stripe */ 1501 struct nfs_page_array page_array; 1502 struct nfs_client *ds_clp; /* pNFS data server */ 1503 int ds_commit_idx; /* ds index if ds_clp is set */ 1504 int pgio_mirror_idx;/* mirror index in pgio layer */ 1505 }; 1506 1507 struct nfs_mds_commit_info { 1508 atomic_t rpcs_out; 1509 atomic_long_t ncommit; 1510 struct list_head list; 1511 }; 1512 1513 struct nfs_commit_info; 1514 struct nfs_commit_data; 1515 struct nfs_inode; 1516 struct nfs_commit_completion_ops { 1517 void (*completion) (struct nfs_commit_data *data); 1518 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *); 1519 }; 1520 1521 struct nfs_commit_info { 1522 struct inode *inode; /* Needed for inode->i_lock */ 1523 struct nfs_mds_commit_info *mds; 1524 struct pnfs_ds_commit_info *ds; 1525 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1526 const struct nfs_commit_completion_ops *completion_ops; 1527 }; 1528 1529 struct nfs_commit_data { 1530 struct rpc_task task; 1531 struct inode *inode; 1532 const struct cred *cred; 1533 struct nfs_fattr fattr; 1534 struct nfs_writeverf verf; 1535 struct list_head pages; /* Coalesced requests we wish to flush */ 1536 struct list_head list; /* lists of struct nfs_write_data */ 1537 struct nfs_direct_req *dreq; /* O_DIRECT request */ 1538 struct nfs_commitargs args; /* argument struct */ 1539 struct nfs_commitres res; /* result struct */ 1540 struct nfs_open_context *context; 1541 struct pnfs_layout_segment *lseg; 1542 struct nfs_client *ds_clp; /* pNFS data server */ 1543 int ds_commit_index; 1544 loff_t lwb; 1545 const struct rpc_call_ops *mds_ops; 1546 const struct nfs_commit_completion_ops *completion_ops; 1547 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data); 1548 unsigned long flags; 1549 }; 1550 1551 struct nfs_pgio_completion_ops { 1552 void (*error_cleanup)(struct list_head *head); 1553 void (*init_hdr)(struct nfs_pgio_header *hdr); 1554 void (*completion)(struct nfs_pgio_header *hdr); 1555 void (*reschedule_io)(struct nfs_pgio_header *hdr); 1556 }; 1557 1558 struct nfs_unlinkdata { 1559 struct nfs_removeargs args; 1560 struct nfs_removeres res; 1561 struct dentry *dentry; 1562 wait_queue_head_t wq; 1563 const struct cred *cred; 1564 struct nfs_fattr dir_attr; 1565 long timeout; 1566 }; 1567 1568 struct nfs_renamedata { 1569 struct nfs_renameargs args; 1570 struct nfs_renameres res; 1571 const struct cred *cred; 1572 struct inode *old_dir; 1573 struct dentry *old_dentry; 1574 struct nfs_fattr old_fattr; 1575 struct inode *new_dir; 1576 struct dentry *new_dentry; 1577 struct nfs_fattr new_fattr; 1578 void (*complete)(struct rpc_task *, struct nfs_renamedata *); 1579 long timeout; 1580 bool cancelled; 1581 }; 1582 1583 struct nfs_access_entry; 1584 struct nfs_client; 1585 struct rpc_timeout; 1586 struct nfs_subversion; 1587 struct nfs_mount_info; 1588 struct nfs_client_initdata; 1589 struct nfs_pageio_descriptor; 1590 1591 /* 1592 * RPC procedure vector for NFSv2/NFSv3 demuxing 1593 */ 1594 struct nfs_rpc_ops { 1595 u32 version; /* Protocol version */ 1596 const struct dentry_operations *dentry_ops; 1597 const struct inode_operations *dir_inode_ops; 1598 const struct inode_operations *file_inode_ops; 1599 const struct file_operations *file_ops; 1600 const struct nlmclnt_operations *nlmclnt_ops; 1601 1602 int (*getroot) (struct nfs_server *, struct nfs_fh *, 1603 struct nfs_fsinfo *); 1604 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *, 1605 struct nfs_fh *, struct nfs_fattr *); 1606 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *, 1607 struct nfs_subversion *); 1608 int (*getattr) (struct nfs_server *, struct nfs_fh *, 1609 struct nfs_fattr *, struct nfs4_label *, 1610 struct inode *); 1611 int (*setattr) (struct dentry *, struct nfs_fattr *, 1612 struct iattr *); 1613 int (*lookup) (struct inode *, const struct qstr *, 1614 struct nfs_fh *, struct nfs_fattr *, 1615 struct nfs4_label *); 1616 int (*lookupp) (struct inode *, struct nfs_fh *, 1617 struct nfs_fattr *, struct nfs4_label *); 1618 int (*access) (struct inode *, struct nfs_access_entry *); 1619 int (*readlink)(struct inode *, struct page *, unsigned int, 1620 unsigned int); 1621 int (*create) (struct inode *, struct dentry *, 1622 struct iattr *, int); 1623 int (*remove) (struct inode *, struct dentry *); 1624 void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *); 1625 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *); 1626 int (*unlink_done) (struct rpc_task *, struct inode *); 1627 void (*rename_setup) (struct rpc_message *msg, 1628 struct dentry *old_dentry, 1629 struct dentry *new_dentry); 1630 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *); 1631 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir); 1632 int (*link) (struct inode *, struct inode *, const struct qstr *); 1633 int (*symlink) (struct inode *, struct dentry *, struct page *, 1634 unsigned int, struct iattr *); 1635 int (*mkdir) (struct inode *, struct dentry *, struct iattr *); 1636 int (*rmdir) (struct inode *, const struct qstr *); 1637 int (*readdir) (struct dentry *, const struct cred *, 1638 u64, struct page **, unsigned int, bool); 1639 int (*mknod) (struct inode *, struct dentry *, struct iattr *, 1640 dev_t); 1641 int (*statfs) (struct nfs_server *, struct nfs_fh *, 1642 struct nfs_fsstat *); 1643 int (*fsinfo) (struct nfs_server *, struct nfs_fh *, 1644 struct nfs_fsinfo *); 1645 int (*pathconf) (struct nfs_server *, struct nfs_fh *, 1646 struct nfs_pathconf *); 1647 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *); 1648 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool); 1649 int (*pgio_rpc_prepare)(struct rpc_task *, 1650 struct nfs_pgio_header *); 1651 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *); 1652 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *); 1653 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *, 1654 struct rpc_clnt **); 1655 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *); 1656 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *, 1657 struct rpc_clnt **); 1658 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *); 1659 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *); 1660 int (*lock)(struct file *, int, struct file_lock *); 1661 int (*lock_check_bounds)(const struct file_lock *); 1662 void (*clear_acl_cache)(struct inode *); 1663 void (*close_context)(struct nfs_open_context *ctx, int); 1664 struct inode * (*open_context) (struct inode *dir, 1665 struct nfs_open_context *ctx, 1666 int open_flags, 1667 struct iattr *iattr, 1668 int *); 1669 int (*have_delegation)(struct inode *, fmode_t); 1670 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *); 1671 struct nfs_client *(*init_client) (struct nfs_client *, 1672 const struct nfs_client_initdata *); 1673 void (*free_client) (struct nfs_client *); 1674 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *); 1675 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *, 1676 struct nfs_fattr *, rpc_authflavor_t); 1677 }; 1678 1679 /* 1680 * NFS_CALL(getattr, inode, (fattr)); 1681 * into 1682 * NFS_PROTO(inode)->getattr(fattr); 1683 */ 1684 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args 1685 1686 /* 1687 * Function vectors etc. for the NFS client 1688 */ 1689 extern const struct nfs_rpc_ops nfs_v2_clientops; 1690 extern const struct nfs_rpc_ops nfs_v3_clientops; 1691 extern const struct nfs_rpc_ops nfs_v4_clientops; 1692 extern const struct rpc_version nfs_version2; 1693 extern const struct rpc_version nfs_version3; 1694 extern const struct rpc_version nfs_version4; 1695 1696 extern const struct rpc_version nfsacl_version3; 1697 extern const struct rpc_program nfsacl_program; 1698 1699 #endif 1700